If you create a new archive, usually WinRAR will propose some
name for it. You may either accept this name or enter another. If
"Default folder for archives" option in WinRAR settings is not blank, WinRAR
will propose to create an archive in this folder. Otherwise the
proposed name does not include the path and archive will be created
on Desktop. If you wish to create it in another folder, press
"Browse" button, find a folder to place the archive, enter
an archive name in the "File name" field and press
"Open".

If you wish to add files to already existing archive, you may
also use "Browse" to locate the archive to update or drag
the archive icon and drop the icon to this dialog.

After you selected the archive name, press "Next" button
at the bottom of dialog.